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package warc
import (
"fmt"
"io/ioutil"
"os"
"path/filepath"
"sync"
"testing"
)
var testData = []byte("this is some very interesting test data of non-zero size")
func writeRecords(w *Writer, n int) error {
for i := 0; i < n; i++ {
hdr := NewHeader()
rec, err := w.NewRecord(hdr)
if err != nil {
return fmt.Errorf("NewRecord: %v", err)
}
_, err = rec.Write(testData)
if err != nil {
return fmt.Errorf("record Write: %v", err)
}
if err := rec.Close(); err != nil {
return fmt.Errorf("record Close: %v", err)
}
}
return nil
}
func writeManyRecords(t testing.TB, w *Writer, n int) {
if err := writeRecords(w, n); err != nil {
t.Fatal(err)
}
}
func writeManyRecordsConcurrently(t testing.TB, w *Writer, n, nproc int) {
startCh := make(chan struct{})
errCh := make(chan error, nproc+1)
var wg sync.WaitGroup
for i := 0; i < nproc; i++ {
wg.Add(1)
go func() {
defer wg.Done()
<-startCh
if err := writeRecords(w, n); err != nil {
errCh <- err
}
}()
}
go func() {
wg.Wait()
errCh <- nil
}()
close(startCh)
if err := <-errCh; err != nil {
t.Fatalf("a worker got an error: %v", err)
}
}
func TestWARC_WriteSingleFile(t *testing.T) {
dir, err := ioutil.TempDir("", "")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(dir)
f, err := os.Create(filepath.Join(dir, "out.warc.gz"))
if err != nil {
t.Fatal(err)
}
w := NewWriter(f)
writeManyRecords(t, w, 1000)
if err := w.Close(); err != nil {
t.Fatalf("Close: %v", err)
}
}
func TestWARC_WriteMulti(t *testing.T) {
dir, err := ioutil.TempDir("", "")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(dir)
var targetSize int64 = 10240
w, err := NewMultiWriter(filepath.Join(dir, "out.%s.warc.gz"), uint64(targetSize))
if err != nil {
t.Fatal(err)
}
writeManyRecords(t, w, 1000)
if err := w.Close(); err != nil {
t.Fatalf("Close: %v", err)
}
files, _ := ioutil.ReadDir(dir)
if len(files) < 2 {
t.Fatalf("MultiWriter didn't create enough files (%d)", len(files))
}
for _, f := range files[:len(files)-1] {
if f.Size() < targetSize {
t.Errorf("output file %s is too small (%d bytes)", f.Name(), f.Size())
}
}
}
func TestWARC_WriteMulti_Concurrent(t *testing.T) {
dir, err := ioutil.TempDir("", "")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(dir)
var targetSize int64 = 100000
w, err := NewMultiWriter(filepath.Join(dir, "out.%s.warc.gz"), uint64(targetSize))
if err != nil {
t.Fatal(err)
}
writeManyRecordsConcurrently(t, w, 1000, 10)
if err := w.Close(); err != nil {
t.Fatalf("Close: %v", err)
}
files, _ := ioutil.ReadDir(dir)
if len(files) < 2 {
t.Fatalf("MultiWriter didn't create enough files (%d)", len(files))
}
for _, f := range files[:len(files)-1] {
if f.Size() < targetSize {
t.Errorf("output file %s is too small (%d bytes)", f.Name(), f.Size())
}
}
}
|
